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The following readings were obtained from three voltmeters used for single phase AC power measurement: V2=170 V across non-inductive resistor; V3=210 V across an inductive load; V1= 350 V across the two voltmeters in series, calculate the power factor. If the non-inductive resistor R= 150 Ω, determine the power consumed by the load.
A trumpet player plays a note with a frequency of 233Hz. The player next to him plays a note with a frequency of 236Hz. What are the wave lengths of the two sounds?
A gas of 1.40×1020 atoms or molecules has 1.50J of thermal energy. Its molar specific heat at constant pressure is 20.8 J/mol K. What is the temperature of the gas
When a potential difference of 12 V is applied to a wire 6.2 m long and 0.24 mm in diameter the result is an electric current of 2.1 A. What is the resistivity of the wire
in a spark ignition engine with compression ratio of 10 the lowest temperature is 200c and the lowest pressure is
Beginning at time t = 0, when the bead passes through x = 0 with speed 12 m/s, a constant force acts on the bead. Figure indicates the bead's position at times t0 = 0, t1 = 1.0 s, t2 = 2.0 s, and t3 = 3.0 s. The bead momentarily stops at t = 3.0 s..
q1. a spaceship travels with a constant speed of 0.3c as it passes by the earth on its way to a distant star.a. the
A ball of mass 5.0 kg is lifted off the floor a distance of 1.7 m. What is the velocity of ball just before it hits the floor
in the deep ocean a water wave with wavelength 95 m travels at 12 ms. suppose a small boat is at the crest of this wave
A pion, which is 140 times heavier than electron is moving with a speed of .75c. Find the momentum of the pion in conventional unit (kgm/s) and also in Mev/c.
If the hypotenuse of a right triangle is 6.00cm long, and the opposite is 4.00. What is the angle facing the opposite
A circuit contains only a(n) 0.189 H inductor. An AC voltage of peak value 177 V and frequency 58.5 Hz is applied to the circuit. When instantaneous voltage is 177 V, what is the instantaneous AC current?
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Determine the initial speed of the projectile
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